Tabulating-stop for type-writers.



NQ. 738,961. v PATBNTED SEPT. 15, 190s.

f H. L. WAGNER.

TABULATING s'ToP PoR TYPE. WRITERS.

APPLICATION FILED 00T. 10.,.1802.

N0 MODEL.

v UNITED STATES Patented September 15, 1903.

PATENT OEEICE.

HERMAN L. WAGNER, OF BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

TABU LATING-STOP FOR TYPE-WRITERS.

SPECIFICATION forming part of Letters Patent No. 738,961, dated September 15, 1903.

Application filed October 10, 1902. Serial No. 126,676. (No model.) l

g of which the following is a specification.

5o This rod 18 is formed with longitudinal` My invention relates to tabulating-stops for typewriters, and has' for its object to provide a stop which may be readily thrown into its operative or into an inoperative position and which will be securely held in either position.

To this end my invention consists of certain features of construction and combination of the same, .as willfbe fully described here-Y inafter and specically pointed out in the appended claims.

Reference is to be had to the accompanying drawings, in which- Figure 1 is a sectional elevation of so much of a type-writing machine as will suffice for illustration of my invention. Fig. 2 is a detail sectional elevation, on an enlarged scale, of the tabulating-stop proper and of its support. Fig. 3 is an enlarged rear view of the stop, its support, and the scale with which it coperates; and Fig. 4 is an enlarged cross-section of the support carrying the tabulating-stop.

Fig. 5 is a detail cross-section of a modification.

The machine illustrated by Fig. 1 is one of the front-strike type, and I desire it to be understood that the invention is applicable to other machines as well.Y

1 designates the frame of the machine, and 2 the segment on which the type-levers are fulcrumed at 3.` The carriage is designated as 4 and the platen as 5. The tabulatingkey 6 is fulcrumed at 7 and has a link connection at 8 with a lever 9, fulcrumed at 10. This lever is loosely connectedat 11 with the frame 12, that constitutes the carrier for the tabulating-stops. This frame has a bottom bar 13, which is fulcrumed on the frame, as indicated at 14, a top-bar 15, which is provided wth a scale 16 and with a rack 17, and an intermediate bar or rod 18, which forms the carrier yproper of the tabulating-stops.

grooves 18nv 18h, extending throughout its length or only along a portion of it, and preferably these grooves are of diiterent depths, as shown, the deeper. groove facing the teeth of the rack 17. Each tabulating-stop comprises a body 19, which is adapted to swing' on the rod 18 and which may be manipulated by means of a handle 20. Within an open recess ofthe body 19 is held a spring 22, which presses toward the rod 18.

presses its end or an equivalent ball 21 or 'like body into one of the grooves 18 or 18b of the rod 18, a certain amount of force is required to turn the tabulating-stop 19 on the rod 18, and thus an accidental movement of the stop is prevented. When the stop is thrown It will be obvious" that in view of this spring, that enters or into the operative position, with the spring on the deeper groove 18, as shown in Fig. 1, an indicating-arm 28, which is secured to the body'19, lies adjacent to the scale 16, as shown in-Figs. 1 and 8. At the same time a movement of the stop lengthwise of the rod 18 is prevented by the engagementl of teeth or ribs 19 on the upperedge of 19 with the rack 17. When, however, a stop is thrown back so as to bring the ribs 19 out of engagement with the rack 17, the stop is free to be moved lengthwise of the rod 18, the inner end of the spring 22 or ball21 in this case simply sliding in the groove 18h. It will be understood that in giving a partial rotation to the tabulating-stop 19 the spring 22 yields sufficiently to clear the ridge between the two grooves 18d and 18". The outward swinging movement of the stop 19 is limited by its engagement with the bottom rail 18 or analogous projection and the upward swinging movement of the stop is limited by the engagement of the index-arm 23 with the upper bar 15.

vThe tabulating-stops above described cooperate with the usual stop 24 onthe carriage, it being understood that normally, as in Fig. 1, the tabulating-stops are out of the path of the carriage-stop, but when the tabulating-key, 6 is depressed the stops 19 are swung into the path of the stop 211i. The rod 18 may support only one tabulating-stop or a larger IOO lent form of rod can be used to prevent the turning of the stop 19 on it and the snapping of a spring that engages with the rod to hold the stop against spontaneous rotation, still allowing it to slide. One such modification is shown in Fig. 5. Hence by groove I desire to refer to any analogous depression.

Vhat I claim as new, and desire to secure by Letters Patent, is-

l. In a type-writing machine, the combination with a supporting-rod having a longitudinal depression, of a tabulating-stop mounted to turn on said rod and to slide lengthwise thereof, and a spring-pressed member earried by said stop and adapted to become seated in the depression of the rod.

2. In a type-writing machine, the combination of a swinging frame which comprises a rod having two longitudinal depressions, of a tabulating-stop mounted to turn and to slide upon the said rod and a spring-pressed member carried by said stop and adapted to become seated in either one or the other of the depressions of said rod.

In a type-writing machine, the combina# tion with a supporting-rod having two longitudinal grooves of different depths, of a tabu'- lating-stop mounted to turn and to slide upon the said rod, and a spring-pressed engaging member carried by the said stop and adapted to project into either one of the said grooves.

4. In a type-writing machine, the combination with a supporting-rod having a longitudinal groove and a scale-rod parallel with said supporting-rod and rigidly connected therewith, of a tabulating-stop mounted on said supporting-rod so as to turn and slide thereon, a finger or index projecting from said stop adjacent to the scale-rocha spring-pressed device projecting from the stop and adapted to be brought into and out of engagement with the groove of the supporting-rod, and

means for preventing a longitudinal movement of the stop in one position thereof.

5. In a type-writing machine, the combination with a supporting-rod having a longitunal groove and atoothed rod rigidly connected with said supporting-rod, of a tabulatingstop mounted to slide and to turn on said supporting-rod and provided with projections arranged to engage the toothed rod so as to hold the tabulating-stop against longitudinal movement, and -a spring-pressed projection carried by the tabulating-stop and arranged to engage the supporting-rod at the groove thereof so as to prevent an accidental turning movement of the stop.

6. In a type-writing machine, the combination with a frame comprising a supporting-rod having two longitudinal grooves, a toothed rod and a scale, the said :rod and the scale being parallel, of a tabulating-stop having an index-finger adapted to extend adjacent to the scale, projections arranged to engage the toothed rod in one position of the tabulatingstop, and an engaging device pressed inwardly from the tabulating-stop into either one of the grooves of the supporting-rod.

7 In a type-writing machine, the combination with a supporting-rod, and a rod parallel therewith provided with teeth on the side which faces toward the supporting-rod, of a tabulating-stop mounted to turn and slide on the supporting-rod, and provided with projections arranged to engage the toothed rod so as to hold the tabulating-stop against longitudinal movement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERMAN L. XVAGNER.

IVitnesses:

Eireann EBLE, ALBERT C. WIECHERS. 

